Excessive retainment of the placenta in a mare.
D000818:Animals; D005260:Female; D006734:Horse Diseases; D006736:Horses; D007744:Obstetric Labor Complications / Q000662:veterinary*; D010920:Placenta; D010922:Placenta Diseases / Q000662:veterinary; D006473:Postpartum Hemorrhage / Q000662:veterinary; D011247:Pregnancy